12.1 View From Earth

Rank the Sun, Moon, and Earth from SMALLEST TO LARGEST.

• Moon, Sun, Earth
• Earth, Sun, Moon
• Sun, Earth, Moon
• Moon, Earth, Sun

which apparent way do the stars go in the sky?

• west to east
• east to west

the apparent motion of objects in the sky depends on the motion of earth. 

• true
• false

do stars stay the same the whole year

• true 
• false

how many official constellations are there?

• 56
• 88
• 122
• 7

Electromagnetic waves________________travel through space.

• Never
• Cannot
• Can
• Wish they could

How much of the electromagnetic spectrum is visible?

• All of it
• None of it
• Most of it
• Only a small part

Which measurement allows scientist to compare the brightness of stars?

• parallax
• absolute magnitude
• red shift
• corona

What is a spectrum?

• The rainbow.
• The range of different types of radiation.
• A spectrum is the entire range of wavelengths of electromagnetic waves. 
• Electromagnetic radiation on a chart.

What is a telescope?

• : A telescope is an optical device that forms enlarged images of distant objects.
• It helps you look at everything that's in space only.
• A device that helps you locate things and it's only used in observatories. 
• A telescope is a reflective mirror showing you only some things beyond it.